package com.itheima.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.io.FileNotFoundException;
import java.sql.SQLIntegrityConstraintViolationException;

@ControllerAdvice(annotations ={RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    /**
     * 全局异常处理
     * @param ex 异常
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
          String[] split = ex.getMessage().split(" ");
            String msg = split[2]+"已存在!";
            return R.error(msg);
        }
        return R.error("未知错误");
    }
    /**
     * 自定义异常处理
     * @param ex 异常
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }

    @ExceptionHandler(FileNotFoundException.class)
    public R<String> exceptionHandler(FileNotFoundException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }


}
